Alright Twitter. Need some help buying an oscilloscope. Requirements are >2 ch and >100MHz. Been looking at a Rigol DS120B. Any reason not to buy it? Any better options?
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Am I mistaken that the 100MHz clock will just look like a sine wave though, since the harmonics will be low pass filtered or of the signal?
No. 100 MHz is the -3dB point of that low pass filter. It's not a sharp cut-off.